blue holes

8:00 am
Tue August 16, 2011

Into It: Blue Holes

Great Blue Hole in Belize.

Blue holes are ancient, flooded caves. To date, over one thousand blue holes have been discovered both inland and in shallow waters from Australia to Egypt to Belize. These water-filled cylinders, like sink holes, are portals to vast caverns, forests of stalactites and stalagmites, hundreds of feet of sheer drop leading to winding tunnels that can branch out for miles.

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